Charles Spurgeon Commentary Acts 2:42

"And they continued stedfastly in the apostles` teaching and fellowship, in the breaking of bread and the prayers." — Acts 2:42 (ASV)

And they continued steadfastly in the apostles' doctrine and fellowship, and in breaking of bread, and in prayers.

They believed the doctrine that was taught by the apostles, and they had fellowship with them and with all other Christians with whom they were associated. They did not try to go to heaven by some secret path without confessing Christ; but, having confessed their faith in Christ, they further manifested their devotion to him in breaking of bread, and in prayers. I do not know how many prayer meetings they had; they must have kept on praying, and praising, and preaching pretty well all day long.